名校
1 . 如图, 二面角
的平面角的大小为
为半平面
内的两个点,
为半平面
内一点, 且
, 若直线
与平面
所成角为
为
的中点, 则线段
长度的最大值是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/69d98e46-6d40-4f1b-8058-5cf008b72771.png?resizew=255)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d9a481d77167a402b59872b538b1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e90d9510b7d495bb79e279abc896d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a769a2ac6ccecc55a9cb48bf6cc4b30c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ac9946fad8b17a7cca85f5027c834a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/29/69d98e46-6d40-4f1b-8058-5cf008b72771.png?resizew=255)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-06-27更新
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3卷引用:浙江省绍兴市第一中学2022-2023学年高二下学期学考模拟数学试题